18. Outline Ubicomp and cars Studies: Police radio SUI characteristics Glove PTT Navigation Conclusion
19. SUI characteristics study Secondary task: speech control of radio 2 x 2 x 2 design: SR accuracy: high/low PTT button: yes/no – ambient recognition Dialog repair strategy: mis-/non-understanding
23. Outline Ubicomp and cars Studies: Police radio SUI characteristics Glove PTT Navigation Conclusion
24. Glove PTT study Motivation: PTT vs. driving performance Secondary task: speech control of radio 2 x 3 x 3 design: SR accuracy: high/low PTT activation: push-hold-release/push-release/no push PTT button: ambient/fixed/glove
32. Outline Ubicomp and cars Studies: Police radio SUI characteristics Glove PTT Navigation Conclusion
33. Navigation study Problems: In-car devices vs.driving performance and visual attention Driving performance/visual attention vs. probability of accident
34. Navigation study With vs. without map: Time looking at the road? Effect on driving performance? Voice instructionfor both 8 male subjects
54. Outline Ubicomp and cars Studies: Police radio SUI characteristics Glove PTT Navigation Conclusion
55. Design implications SUI may improve performance. SUI details matter (SR accuracy, PTT). Must earn users trust. Complicated displays may reduce visual attention even more. Small screen? Voice-only may be just fine.
56. Next? “You’re on the right track.” Complex environments? Other possibilities e.g. augmented reality. Safety?